19997902

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{5503}}^1$

素因数の和:5607

約数の個数: 16

約数和(自身を含む): 31703040

約数和(自身を除く): 11705138

約数列:

[1, 2, 23, 46, 79, 158, 1817, 3634, 5503, 11006, 126569, 253138, 434737, 869474, 9998951, 19997902]

約数ペア:

[(1, 19997902), (2, 9998951), (23, 869474), (46, 434737), (79, 253138), (158, 126569), (1817, 11006), (3634, 5503)]